#3375, part 1

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27205 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Dragging polar points

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27206 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e